Students build fraction fluency using dynamic flashcards that model adding and subtracting fractions on a number line. Learners flip through cards visualizing fraction jumps, connecting number line reasoning to fraction operations. This activity supports TEKS 5.3.H (add and subtract fractions) and aligns with Common Core 5.NF.A.1.
Skills: fraction operations, number line modeling, fraction sense, computation fluency. Grades 5-8.